SUSTAINABLE MANAGEMENT OF SUGAR BEET CYST NEMATODE

Through this project, we aim to (1) reduce the risk of the invasive nematode for sugar beet growers through the development of multiple management strategies; and (2) deliver the findings of this proposal to sugar beet growers through collaboration with extension faculty at various universities. We will achieve these goals by pursuing two specific objectives:Objective 1. To decrease BCN numbers and increase crop yields with the use of tolerant and resistant sugar beet varieties, cover crops, and manures.a. Assess the BCN host status of different tolerant and resistant sugar beet varieties. In addition, we will evaluate the BCN host status of current and potential sugar beet rotational crops (dry beans, soybeans, clover, and pickles) in greenhouse trials.b. Evaluate the effectiveness of different varieties of oilseed radish and four potential cover crops to serve as trap crops for BCN in greenhouse trials.c. Determine the type, optimal application rate, and time for composts/manures for control of BCN.d. Evaluate the effects of resistant and tolerant sugar beet varieties on BCN populations and crop yield. The following management practices will be evaluated in field and outdoor microplot trials: use of resistant and tolerant varieties, non-host rotational crops, cover crops, and composts/manures.Objective 2. To extend the knowledge acquired by this work to growers, agricultural professionals, and scientists in sugar beet growing regions in the U.S.a. A pre- and post-implementation survey will be conducted with growers in participating states (Michigan, Minnesota, and North Dakota).b. Research and management strategies for BCN will be presented on field days for growers from participating states.c. The results and trial updates will be presented yearly in extension talks, publications, posters, and oral presentations at relevant industry meetings.